Topic: J. Ditchfield perfume bottle. Anything special about?

[misha]

Picked this up cheap a few weeks ago, didn't realise it was a Ditchfield piece, sure recognised a well made piece of iridescent glass and silver stopper though.
At the time my essential reading glasses were at home. Didn't recognise the Glasform sticker as 'Ditchfield'.

So, a signed and what appears to be numbered aquamarine perfume bottle.
A small and so, appropriate functional size for the expensive stuff.
Honestly, most of my art glass perfume bottles would hold 200-500ml of the scent... more like buckets! 

Signed: J. Ditchfield - GLASFORM - RB2  [maybe the 'B' is an 8]

Is this piece anything special with the number [or 'bread & butter' work], and what does such sell for these days in UK?

A good friend in UK tells me market for John Ditchfield - Glasform has 'cooled' from what I saw 5 years ago when I was considering buying a piece for collection.
At the time, IMO, some pieces were a bit over priced and the added expense of shipping made for very much so.  I've seen very few J. Ditchfield - Glasform if any selling on the eBay Australian site.
Now I focus on Aust. pieces without regret... so this perfume is excess to want or need.

[chopin-liszt]

I don't think it's a "bread and butter" piece, otherwise I'd have seen one before now.
The marks of "J. Ditchfield", "Glasform" plus a number, is the convention used on his unique pieces.
My 3 unique pieces are all just 4 figure numbers though.

Is there a hallmark on the silver? That would give at least a latest possible date for it.
Perhpas a different numbering system was used on PBs?