11th February 2013, 05:58 PM
They look like 'rusticated' pottery, usually A-S, but sometimes found in the IA. These look more IA than Saxon, as the latter is usually 'pinched' rather than just poked with a fingertip. Fabric looks more IA as well. In the case of the one on the left, the odd shape might be due to spalling, when a roundish flake of pot blows off the outside of a vessel during firing or post-production heating. In the case of the one on the right, the finger-tipping appears to be internal, and it looks like a base that has blown at the primary coil-join - quite common on flat-bottomed, coil-built pots, they're not very resistant to thermal shock. The 'fingertipping' effect might have been due to the potter pressing the base onto a board to flatten it. Both a bit odd though, and always difficult to be certain from a photo. That'll be £25 please 
\"Whoever understands the pottery, understands the site\" - Wheeler