I found this at a market today and it had to come home with me. It is dated F-4 which is 1935, right? I didn’t think the Ball Tech was introduced until 1939, so I’m not sure what i have.
The cap is a little rough? So I don’t know whether I can polish it without hurting the engraved trade mark...can I?
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The cap is a little rough? So I don’t know whether I can polish it without hurting the engraved trade mark...can I?
Sent from my iPhone using Tapatalk