Sully:
Regarding your question, check out the referenced web site
1970 911T Options. Page 17 has the information regarding the engine lid emblems. It states that the silver engine lid emblems were standard for the T, but that the gold color for both (not separately) was optional. Either separately for those two pieces only , or as part of the larger Appearance Group option.
The silver Targa emblem for the T is new information to me. I'll include it in the next update. My S has gold Targa lettering on the stainless band, and I assume the E also would have had the gold Targa lettering. There is no mention in this reference as to the gold Targa emblem being available as an option on the T.
Al