Interesting interphone controller on ebay 51a

[5415551212]

Interesting 51A home interphone controller, New old stock.



https://www.ebay.com/itm/NOS-Western-Electric-51A-49-Control-Unit/303908497254

This is the second NOS interphone controller this seller has listed.
The last one they sold for $300:

It has a smaller later style green caps, mine came with yellow paper caps, I wonder if they actually had different schematics?
Hopefully the buyers show off their rare interphone systems here.

[TelePlay]

Seems the seller realized on the first sale that $300 was a bit low, he left money on the table.

Seller description:  "NOS Western Electric 51A-49 Home Interphone Control Unit. Brand new never opened until listed today on eBay. The unit was found in a hoard inside a storage locker quite by accident. This is a unique opportunity to acquire a seldom seen on eBay or any other buying service a piece of Bell System History. It's always possible one could pop up but definitely not brand new. Please ask any questions before purchasing."

[5415551212]

Looks like the seller ended the listing.