The slide plate (to access the bobbin) had a small oblong hole which aided whilst sliding the slide plate to the left to view the bobbin.This image shows even older antique Singer machines dating from way back to 1865 to 1870 with a fiddle type bed.The Singer 222K as shown has the sleeve arm or sometimes called tubular bed.

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The Singer 99k sewing machine is small in size measuring only 12-1/2" wide, this image shows an early version the 99K (99K21 - 26) made between 1924 to 1954. The stitch length was adjusted via a screw and the machine did not stitch backwards.

Later versions 99K31 had a stitch length up-down lever with reverse stitch and numbered tension dial - Year 1955 The Singer 15K is always recognised by its tension unit being on the left face of the machine.

The Singer 28K was small at only 12-1/2" bed size and had its bobbin winder located high-up near the hand wheel. Singer 127K sewing machine was very similar to the 28K.

But the 127K was manufactured years later at around 1912.

How to Identify an old machine without a serial number..?

If your sewing machine does not have a model number, but has a serial number similar in location to the image above, use the images below to help identify the sewing machine model number.

First introduced in 1935 and continued in production up until 1962 Despite the differing body shapes and apart from it's smoothness, the 201K can be recognised by the large disc with the stitch length lever protruding from it.

The tension unit was directly in front on the needle which in turn threaded from right to left.

The light aluminium frame was only 9-3/4" wide, even with the fabric rest down it still was only 14-1/2"....!

I'm sure its still the smallest adult sewing machine ever produced.

This machine has the "Acanthus Leaves" decal set which was used by Singer on the 12K and 13K models.