Can Someone Help Me To ID This Hallmark on Vintage Floral Brooch Pin

[lowbow2004]

Hi there. I have the floral style brooch pin that in need of a ID.  Back is stamped FO9 with the letter T placed inside V 750. I know it could use a cleaning although I'm unsure how for fear of damaging the red stone.

Any additional information on these hallmarks would be Greatly Appreciated and thanks for looking at my post.

[wardbraun]

 Can’t speak to the letters but 750 is a mark for 18k. 

[old.crows.nest]

Yup, Gold Hallmark. Not sure which Country. I'll see what I can find. Does not look like Italy marks I am familiar with but they are good for Flowers and Coral.

[old.crows.nest]

This Mark is stumping me.

Not sure it is Italian. Might be another country close by based on use of Coral. I have also been looking at South and Central America because I have a vague memory of a Silver Mark laid out the same way.

Their are a few Members here that might help.

@arlene_v may recognize this Mark.

[old.crows.nest]

The VT might be the (Country) abbreviation for Vatican City but I looked and did not find this Mark.

[arlene_v]

This one has me a bit stumped, but I found this old sold Etsy brooch that seems to be similar?

Vintage 18K Gold Brooch Italian Essay Mark FORLI-CESENA | Etsy

[old.crows.nest]

@arlene_v 

Thanks for taking a look. 

[lowbow2004]

Thanks Arlene and it does seem similar, I just see a W on my mark but I'll closely recheck once I get back home.

[lowbow2004]

I meant to say I didn't remember seeing the W

[old.crows.nest]

@arlene_v 

I did a new search today but left off the word Coral this time.

Came up with this Pearl Flower Brooch with an alternate Hallmark that looks like it could be Italian but need more eyes as picture is not that clear. There is a Maker's (?) Mark with a W over a blurry V something.

Yellow Gold Flower White Pearl Brooch 

[old.crows.nest]

Another Brooch with Pearl. This one sold.

18k 750 gold italian brooch vintage