Yesterday, during my research on the McGill leaf from NT lectionary l 1663 (which I talked about previously), I came across l 192 and realized that these manuscripts are most probably written by the same scribe. There is the possibility that it is not the same scribe but that both manuscripts are products of the same scriptorium, but a close inspection of both manuscripts suggests that we are indeed dealing with the same scribe. This means that we need to return to the question of dating, since l 192 is dated to the 13th century and l 1663 to the 14th. My hunch is that both are to be dated to the late 12th/early 13th, since they are consonant with later hands in the codices vetusti category of minuscule manuscripts (i.e., mid-10th to mid-13th centuries).
I have put together some comparanda but please note that these were put together in haste: better comparisons certainly exist and the image quality of the samples is poor. The hands in both are fluid and the letter forms often change from one occurrence to the next. Please take a look yourself at complete images of l 192 here and an image of one leaf of l 1663 here. The pictures on the left are from l 1663 and those on the right are from l 192.