Hi, wondering if I could get my help learning about an F112 that I own. The tag says Hoboken, with a serial number OA820. I assume that makes it a 69/70 (during the period when production moved to Westerly). Here is the odd thing, the fretboard has two dots for every fret —not just the 12th. The dots are also a bit larger than those I have seen on guilds of this period. Obviously it could be a fretboard added after a repair, but I thought I'd ask in case it was a standard feature during the late 60's. I'd appreciate any insight. Thanks.