I have a list of codes like this in column B:
BC SB2 C08 illus brief BC SB2 C10 illus brief
BC SB3 C11 illus brief
BC SB2 C09 tech 1pf
BC SB2 C11 tech brief
AB SB2 C12 tech brief
AB RT3 C01 tech brief
AB SB3 C11 tech brief
AB RT6 C06 illus brief
ON SB6 C06 illus 2pf
ON SB6 C07 illus 3pf
ON SB6...