Hello Nick,
Has Mr. McTague passed away ?
I do not know him or have never met him. But there is a note in Jan Still's book on Imperial Lugers at the bottom of page 92 that he assessed a 1915 Erfurt LP-08 luger (which is a piece surrounded by controversy) and considered it original and correct. It is for sale with the folks that run MidWest Firearms...here is a web site link if you want to see a photo...
http://www.midwestfirearms.com/home.html
(...one needs to register and receive a log-on...)
Regards,
Pete... <img border="0" alt="[typing]" title="" src="graemlins/yltype.gif" />