Wilton Armetale Scallop Handle Oval Tray. The tray is made of a non-toxic aluminum-based alloy that has the look of pewter. It is highly durable and designed to be used for cooking and serving, as it can withstand temperatures up to 1000 degrees F. The scalloped handles resemble seashells, giving it an elegant, classic design. This piece is part of the "Scallop Handle (Hollowware)" pattern by Wilton Armetale, which has been active since at least 2008.