Here are some more recent Mail locks that were put up for auction on eBay:
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US Postal Service Reg`d Mail counter padlock, lock RPO
This obsolete US Mail Regestered Mail padlock with counter reads "REG`D U.S. MAIL". The other side is "B 46897". The counter is at 0471. No key. This
padlock is made of brass. - eBay
This lock sold for $60 (Plus $6 Shipping).
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Vintage Obsolete US Mail Registered Lock #21 KeyThis auction is for a Vintage Obsolete Registered Lock #21 Key.
This key is no longer in service by the postal service.
The key says US Mail #21 on the front and #10200 on the back. - eBay
This key sold for $54.69 (Plus $5.45 Shipping).
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ANTIQUE VINTAGE U.S. MAIL REGISTED OBSOLETE BRASS LOCKTHIS AUCTION FEATURES AN ANTIQUE - VINTAGE U.S. MAIL REGISTED OBSOLETE BRASS PADLOCK WITH COUNTER DIGITS ON THE SIDE. GLASS COVER STILL INTACT OVER COUNTER. THE LOCK MEASURES 2 1/2" X ALMOST 2". SORRY I HAVE NO KEY AND IS SOLD "AS IS". OVERALL CONDITION IS GREAT. LET THE SCAN BE THE GUIDE. LOCK SEEMS VERY NICE AND CLEAN. IF YOU NEED MORE PICTURES or OTHER INFO LET ME KNOW. - eBay
This lock sold for $46 (Plus $6 Shipping).
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Vintage Obsolete US Mail Registered Brass Counter LockThis auction is for a Vintage Obsolete US Mail Registered Brass Counter Lock.
This lock measures approximately 2¾ long x 1¾wide.
Made of brass.
On the front Reg'd US Mail
On the back M53095
Counter reads 0907 and glass is fully intact.
Sorry but I do not have the key that opens this.
This was used by the US Postal Service to lock registered mail in a canvas bag.
The counter advanced each time the lock was open.
This lock is no longer in service by the US Postal Service - eBay
This lock sold for $24.99 (Plus $5.95 Shipping).
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Rare POST OFFICE PUSH KEY LOCK FOR MAIL BOX'S LQQK N/RUp for auction is a rare U.S. POST OFFICE Push Key Lock. The lock is marked STREET LETTER BOX LOCK UNITED STATES MV. This lock still has the original copper chain that was used to attach it to the mail box. This lock is opened. The Gent I got it from opened it for me.He had a key that worked but wouldn't sell it or let me have to make a copy. - eBay
This lock sold for $20.49 (Plus $4.80 Shipping).
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Postal Registered mail vintage brass lock with counterThis is a very nice old brass lock originally used by the postal service to secure registered mail. It has a counter on the side which is at 120. The front reads "REG'D U.S. MAIL" and the back has a serial number "B 46570". It is in very good condition as seen in the photos. - eBay
This lock sold for $49.99 (Plus $8 Shipping).
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OBSOLETE MARKED COUNTER WINDOW MAIL LOCKThis is an early and obsolete brass counter window lock. It is marked on one side: L 28939; it is marked on the other side: REG'D U.S. MAIL. There is no key. These are no longer used by the mail service and are obsolete. Everytime the lock was opened the counter numbers would increase and could be seen from the little window on the side of the lock. This one is at 807. The lock is 2 5/8" tall and 1 3/4" wide x 1 1/4" thick. On one side of the bail it has a STAR. The lock has seen use, but, is in good shape. This lock does not violate ebays security policy. - eBay
This lock sold for $33.90 (Plus $5.20 Shipping).
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brass street letter box lock & 2 keys padlock locksmithout of service 51 letter box lock with 2 consecutive numbered keys....great condition...u s only..paypal..FREE s/h - eBay
This lock sold for $105 (Plus Free Shipping).
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mail counter brass lock/key set padlock locksmithnice counter mail bag lock with key...u s only..paypal..free s/h..note..discount price...works but a little hard to turn...... - eBay
This lock sold with a 'buy-it-now'price of $55 (Plus Free Shipping).
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U.S. Street Letterbox Lock with Original KeyOriginal U.S. Mail Street Letter Box Lock #51 with an Original Key. Lock is brass with a nice patina. Extremely nice spring action. Shackle jumps open when lock is inserted. Measures approx. 2" X 2 7/8". - eBay
This lock sold for $125 (Plus $8.05 Shipping).
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Street Letter Box Lock MV Brass Padlock Mail WITH A KEYThis auction is for one (1) padlock This is a unique padlock it is made out of brass. It is an antique Street Letter Box Lock and I would almost say it is new old stock. I see very minimal signs of any use. It has minor storage scratches and dents which is to be expected from an item of its age and the fact that they were "thrown" into a box with other locks during shipping. There are a few areas of patina which really add to the character of this lock (see photos). The lock also features a beautiful bronze chain. I am also including a WORKING KEY!!! - eBay
This lock sold for $104.49 (Plus Free Shipping).
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BRASS US STREET LETTER POSTAL BOX PUSH KEY LOCK PADLOCKUP FOR BIDS IS AN OBSOLETE & VERY WELL PRESERVED MINIMALLY USED & OLD/OBSOLETE HEAVY BRASS STREET LETTER BOX LOCK (UNITED STATES MV) W/8" CHAIN, UNFORTUNATELY MISSING ITS PUSH KEY. SUPER NICE OVERALL SHOWING ONLY HANDLING WEAR-NO HEAVY SCRATCHES & NOT CLEANED. IT MEASURES 2" WIDE & JUST UNDER 3" LONG. - eBay
This lock sold for $23 (Plus $6 Shipping).
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Reg'd U.S. Postal Service Mail Lock w/counter--ObsoleteUp for Auction and Bidding we have this Rare, Obsolete US Mail Reg'd Pad Lock w/counter. On the Front of the lock it reads: REG'D U.S. MAIL, and on the Back it reads: A46383. The counter is currently at 927 and is in good/fair condition. It is not locked at this time and does not come with a key. This is a very nice, unusual and uncommon lock and would make the great gift for that avid "Lock and Key Collectors" Collection. - eBay
This lock sold for $38.01 (Plus $4.85 Shipping).
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