Have you checked to see if you have the needle in the correct way??,and is it threaded correctly.I had the 640 many years ago and it looks a lot like yours.Check your feed dogs,they should be in the up position.If memory serves me correctly the feed dogs are lowered and raised by that handle on the bottom right. Thread it up and let us see a picture of it threaded.Also check to see if the bobbin is in correctly. I'll come back to this post later to see if you solved the problem. Kathi

As far as the thread color inside, you could use pretty much anything inside the pants to FLAG they are the blue ones. You could even just write something on the white pocket material with a sharpie. As far as hanging in the closet, hang the blue pants on a different color hanger than the black pants. If you are using wooden or don't have any different color hangers, then put a tag or something on the hangers that hold the blue ones.

I don't know what bone would feel like, Linda, but they may well be. I thought celluloid was fragile and the instruments are solid. The needle case screws together. Would bone be treated to do that? What would the pointed thingie be for? It wouldn't be strong or sharp enough to punch leather like the awl is. Is it a little travel kit? I'm really curious. It's a pretty little thing and from some of the flowers being worn off, it must have been used. Lori, my DH would do the same if he thought he could use it in any way, but he's not getting his mitts on this little guy!

Aww! Chambray, one of the many old fashioned cottons that used to be widely available at the many fabric stores that used to be in every small town. Back inna' day, if you went out the door to go to the fabric store with the intention to bring home a length of chambray, that is exactly what you would end up doing. Nowadays, you will have to search high and low to find a traditional piece of chambray on the bolt. It used to be a solid staple of the store and it was a mid priced fabric. It is much harder to find. It used to be sold as part of the "mens shirtings" group of fabrics. Yes, that is what the display signs used to say. Can you imagine that signage in Joanns today?