Penny Blacks with Taunton Maltese Crosses in Red 1840 and Black 1841

Here are two wrappers, one from September 1840 and the second from February 1841.  Both bear Penny Black stamps, the first with a red Maltese Cross cancel and the second a black cancel.

In February 1841 the 1d red was introduced and the colour of the cancels was changed from red to black.

Both entires also have a "TAUNTON" double-arc datestamp, the first without a code letter and the second with one.  The code letter was introducted early in 1841.