Cornelis, thanks again.  I was still curious so I went to the Rijks.M. site and locted their page on the cannon you so kindly posted, and pasted it below here for anyone's reference.  
 
Then I did of course the natural thing and hurried off to measure mine to see if they matched that example in the Rijks.M.   
 
My pair have barrels of total length 63 cm, same as the museum example.  The bores on mine are 3.1 cm caliber/diameter, and that in the museum is 2.8 cm, so either mine enlarged from firing or Ouderogge simply bored them a bit larger, but the overall details match precisely so I can now be sure mine are also Ouderogge pieces, at least "by attribution." 
 
I have only been trying to figure out for the past 29 years who cast my pair of guns, so thanks very much for solving that problem for me! 
--------------------- 
Identificatie / Vervaardiging Fysieke kenmerken Opschriften / merken Verwerving Identificatie / VervaardigingIdentificatie / Vervaardiging Collectie 
wapens / militaria 
Objectnummer 
NG-NM-9803-A 
Titel(s) 
Model van een bronzen kanonVervaardiger 
bronsgieter: Cornelis Ouderogge 
(.... - 1672) 
plaats vervaardiging: Rotterdam  
Datering  
1649 
 
Fysiek medium 
Materiaal 
bronsAfmetingen 
geheel lengte: 63.5 cm, geheel breedte: 12.9 cm 
totaal gewicht: 18 kg 
monding-zundgat lengte: 53.5 cm 
kaliber diameter: 2.8 cm 
druifbol diameter: 3.4 cm 
kulasband diameter: 9.9 cm 
tap diameter: 3 cm 
loop diameter: 5.4 cm, loop diameter: 8.7 cm Opschriften / merkenOpschriften / merkenOpschriften / merken 
signatuur en datum: 1649 / OUDE ROGGE.FECIT.ROTTERDAM. 
monogram: A H 
VerwervingVerwerving Verwerving  
aankoop in 1894-04-17VerwervingNummers / relaties
		 
		
		
		
		
		
		
		
	 |