I know a dump that is full of those and the NDNR embossed type too. Was a lumber camp from the 1930s through the 50s. I picked up an example of each. Knew they weren't worth much but it is a bottle collection now isn't it.[]
yeah your right it is a collection but there are so many of them you have to draw a line somewhere i drew my line at the early 60's i dont like ND NR bottles they are too new for me