The name Mrs Potts has been included on the sampler. Mrs Potts may have been Betty's embroidery teacher.
The sampler has been damaged around the edges by having been nailed to a stretcher. It has also probably suffered through damage caused by moth attack. The sampler has been washed and because the ground is wool the holes have frayed - wool is quite springy.
Samplers were quite common from the late 18th through to the end of the 19th centuries and served a number of purposes. They were primarily a means for teaching young girls the many different needlework stitches, whilst at the same time they acted as a vehicle for teaching and reinforcing Christian values and beliefs.