Worst Mezuzot Ever I

These mezuzot were actually taken off of somebody's door.

Both mezuzot were probably not written by Jews, definitely not by trained scribes. There are letters that look like other letters, letters that look like numbers numbers, and letters that look like nothing much in particular. The bottom mezuzah is also written on "klaf mashuach," literally "smeared parchment."  

Klaf mashuach is ordinary parchment covered with a chalk based substance called log in Hebrew. At one time, it was standard procedure to coat the backs of sheets used in Torah scrolls with log so that it would be uniformly white instead of showing the natural variations of the skins. Ashkenazim stopped doing that a while back, preferring the natural look (I also think it looks nicer personally) but many sepheradim still write on parchment that was mashuach on the reverse.

This mezuzah, however was mashuach on the inside which presents two major halachic problems which render the mezuzah worthless according to the majority of poskim  regardless of the awful handwriting:

1. If the mezuzah is written on chalk paste, then it isn't written on parchment (chatzitza)
2. Moreover, even if for some reason the chalk paste were to be considered part of the parchment negating the first issue (battel) the chalk paste is prone to peeling and flaking when rolled up, causing the writing to rub out as you can see in the specimen above.

Despite all of this, there are less than honest scribes who continue to write on klaf mashuach because is easier to write on since it has a more papery texture. Many mezuzot and cheaper pairs of tefillin are still written on Mashuach.