National Automatic Sales Co

[HSaidman]

I bought 2 small Yale padlocks recently. Both locks are keyed the same and have National Automatic Sale CO engraved on them. I am guessing this may be a vending type company but cannot find out anything on them. There is a company with that name but that company started in 1970 and these locks are older.


Has anyone heard of this company and possibly know what type of machine these may have been used on? Thanks.