dating this dress and if anyone has seen the label before?

[maltby]

Hi guys

any ideas about this black velvet dress? The label is funny, stitched in by hand maybe? I couldn't find anything online or in the label resource so maybe someone just made the label? metal zipper which I think says "conmatic"

 

[lkranieri]

From what I found, it appears Splendiferous was a store in NY, from the late 1960's to the early 1970's. From a 1967 Editor & Publisher Company publication: "New agency...'heralds the opening of the first major fashion store of its kind' on New York's Fifth Avenue in 35 years with (a) year-long campaign for Splendiferous (that's the store) in New Yorker magazine..."

 

[Pinkcoke]

Lovely dress. It looks commercially made to me with that very neat and ornate tape decoration so I would think the label was original. Many manufacturer's labels did used to be sewn in by hand as one of the last finishing steps. Alternatively if the dress is altered at the back zip seam by enough the label often gets moved when it is in the way and re-sewn back on after the alteration.
The last photo seems to show the entire contrast moire fabric hem has been turned up, either to shorten the dress or hide this portion. I would be inclined to let this back down as it looks as though it would bring the balance back into the dress design, between the collar, decorative panel and wide contrast hem panel. The original hem fold may be under this, or it may have been undone, or that solid looking edge may be a finished selvedge requiring no further hemming.
It looks 1960s from what I can see, to narrow dating down it would help I think to see this modelled if possible.