SILVER COIN 8 REALES OF PHILIP IV. ASSAYER IB (Juan Bautista de Barniches) WEIGHT : 27,3 grs DIAMETER : 44 mm. The item "¡¡ VERY RARE! SILVER COB 8 REALES PHILIP IV.ASSAYER IB" is in sale since Thursday, October 27, 2016. This item is in the category "Coins & Paper Money\Coins\ World\Europe\Spain". The seller is "exclusivecoins2015" and is located in Chapela. This item can be shipped worldwide.