Hmmm - but 9FY and 9FF do not occur in that document. 9FG does, but it has to do with a sealed DB9 connector, not the item that looks like the mystery disks. On Tue, May 30, 2017 at 1:03 AM, Trevor wrote: > Sean Breheny wrote on 30/05/2017 14:39: > > Trevor - how did you manage to go to page 1290 of their catalog? I > > can't find any mention of their catalog on their site and google > > isn't too helpful, either. > > My Google Fu is better than yours? ;) > > First result in a search for "9fg 9fy 9ff steel" > > Catalog link > http://www.hoffmanonline.com/stream_document.aspx?rRID=3D103421&pRID=3D10= 2437 > > > You do look close. > > Maybe... > > > The box is puzzling, though, since you wouldn't go to the trouble of > > making such a nice box for something which was not an instrument > > (i.e., something which gets installed and not touched again). > > I don't know, calibration? > > > I do think these are filter related, though, because if you look at > > the circumferential holes they are not clear holes all the way > > through on any of the disks. The ones with a letter F in the number > > have a pink substance viewable through the holes and the two without > > an F have a grayish color visible through the holes. > > They also look the the screens I use for mincing on my Kenwood Chef, but > no idea about the plugs in the bottom left. > > > It is also interesting that the designation starts with 9 and there > > are nine disks. > > Yes, it is curious. > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .