Need help identifying the model on my Structo Artcraft Loom
I have a table-top Structo loom and I'm having some trouble identifing the model number. From searching, all the photos online seem to match the 750 model, however I'm confused because the serial number stamped on the top is 705-5527, which implies to me that the model number should be 705, not 750. I can't find any mention anywhere of a model 705 even existing.
My loom has levers on the front (not side). Paint on the metal surfaces is grey, not black. Weaving width is 26 inches. It has tracks and lever spaces for 8 shafts, although my loom only has four shafts installed. I could post a picture but mine looks pretty much exactly like this one: http://austin.listlux.com/a,42,250532,Structo-Artcraft-750-Weaving-Loom----225--Steiner-Ranch-.htm
So, is there such a thing as a model 705 or do you think I likely have a 750? Is there any way to determine the age based on the serial number?
Thanks in advance for your help.