Bunch of grapes, mounted on base containing letters ‘ROP’ (?)

Watermark bunch of grapes, mounted on base containing letters ‘ROP’ (?)
Date c.1639
Location of use Dublin, Ireland
Dimensions 47 mm x 26 mm
Chain-lines 26]-23-22-22-23-22-22-22-23-21-22-23-24-21-21-22-23-[25
Position overlapping lines 13 and 14
Process Canon EOS, backlighting; Photoshop
Source Office of the Chief Herald Collection, GO MS 50, f. 229; researched and described by Louise O’Connor
Repository National Library of Ireland