Unidentified Stamp

Unidentified Stamp
Arms:
Per saltire four cinquefoils in fess point an annulet for difference
Motto: Cum Dei estis tvrris vestri minime estis i cort
Dimensions (height x width): 75mm x 75mm
Monogram: D F
Initial: D F
Heraldic Charges: cinquefoils (4)per saltire

Sources