The main issue with this theory is the fact that quite a few of them go over 52 in their second half of those 4 digit numbers. So that makes me think that cannot be weeks. Also when looking through some older catalogues, these pifcos didn't make an appearance until the later 80s (around 1988/1989 time). I did have a little theory it was a serial number but with the 3 that I own that have this number. It really doesn't add up at all
![[UNCUT] บอสพอล แผลงฤทธิ์ บอสพระ-นักร้อง ก. โดนแฉยับ! I คนดังนั่งเคลียร์ I 21 ต.ค. 67](http://i.ytimg.com/vi/XKf6HeftoPI/mqdefault.jpg)
The main issue with this theory is the fact that quite a few of them go over 52 in their second half of those 4 digit numbers. So that makes me think that cannot be weeks. Also when looking through some older catalogues, these pifcos didn't make an appearance until the later 80s (around 1988/1989 time). I did have a little theory it was a serial number but with the 3 that I own that have this number. It really doesn't add up at all
Yeah it doesn’t fully make sense lol