treadlep

I've been looking at all of the vintage machines and have been inspired to clean up and use an old treadle machine I inherited from my great grandmother. I'm interested in any information anyone can provide regarding the manufacturer and age of this machine. It works fine and seems to be in very good condition. The only information on the machine is the name "richmond", but paperwork with it indicates it was sold by the Charles William Store. The needles with the machine are stamped "B Eldredge", but I have no idea whether a currently manufactured needle might work (seems longer than the average needle). It has a metal spring belt that drives the treadle, a shuttle bobbin and came with a box of Griest attachments. I've checked out several pages of this forum and only seen a few machines that seem to be close. Thanks so much!