I have strangely mixed feelings on this one, I have a strong dislike of buying anything that does not have the makers name on it, if the item is unmarked, I presume the maker has no pride in the workmanship and the items (spanners maybe) are being sold by mutiple outlets who might even put there own name on it using something like a sticker (even worse).
If the name SHOULD NOT apear on the item the that is simply the case, adding it detracts from any desire to own it, (paintings should definately be signed) in the case of an engine, it might have been got at several times by an amateur like me after the pro had stamped his name (for instance) but if I was ever to see an engine that had the number PJT004 instead of a factory number then I probably would want to buy it (and yes I have in the past seen that stamping, so maybe therer is PJT 001, 002, 003 and other beyond 4, perhaps), if you dont know who PJT is then I am not going to be the one to tell you.
There is secret code/tell tale on my own made solid copper head gaskets for triples, so that (in the event) I would be able to see if its one of mine or not, does this count as a signature?
That rear drum brake is ten times more effective than the stock triple disc which is crap and I have lived with one for 43 years on TOG, many attempts to modify it have so far failed, very slight improvement? yes but slight being the word.
CLEM