Which machines are worth keeping

[Constabulary]

Just look up Singer 16K - you may find more information this way. The subclass (56 in your case) often just describes different accessories the machine was fitted with but the main machine often is the same - not always but often! I just recently (few month ago) I discovered a Singer 16K SV 11 model no one seems to have seen before. Still have not found further detailed information but you can compare unknown subclass machines with the "standard model" and this way you find out the differences. BTW - the serial number gives you an idea when the Singer 16K has been manufactured

Same with the Pfaff 192 638 L - just look up Pfaff 192

If you don't mid please post pictures of your machines. Not only because it is interesting to see them but maybe we can figure out more details regarding the sub class so that's a good help for other people who are looking for information.

Maybe you are interested in the 16K model I have found:

 

[alexitbe]

I would keep the pfaff 192 since its specifically for leather and its a post bed which are not cheap to buy.  You can convert it to a flat bed sewing machine by maying a simple  raised table for it...

However, its probably not strong enough for veg tan leather you might use for belts... However, for bags and everything else ts extremely flexible

[oyvindbl]

I took some pictures. Hard to see in the mess now, but the the Singer 45K68 is seems to be on a homemade welded stand with a wooden topplate.

The Allbook Hashfield Fur sewing machine and the Singer 29K4 seems to be on original table and stand

[Bert51]

My Adler 105 is not to dissimilar to the 45K68 stand, my stand looks like it's made out of 1 1/4 inch angle iron, when I put it on castors I had to put 6 castors on it as it flexed so much.

They looked like they have been well looked after, mum must have liked them very much.

Yeah, I think I could make them all fit......................

Bert.

[alexitbe]

If you want to sew veg tan leather that keep the singer 45k.... It will go through anything you are likely to want to sew....

 

The singer 29k is a patcher machine and is really only meant for thin leather, which you would find on boots and shoes... 

 

The Allbrook is a fur sewing machine and is not much use for anything else...It produces a chainstitch which will completely unravel if the thread breaks... It does not break with fur coats or hats because the thread is protected by the fur itself and the lining...  I would get rid of that if you have no intention to sew fur gloves,hats, etc.... Note that these raise quite a bit of money in Europe.  Maximum 400 Euro.