and the Grill Size Gauge, which is used to determine the size of the grill. The Parallel Line Millimeter Gauge is used to measure the width or height of coil stamps, as well as the parallel accuracy of coil cuts and edges. For collectors of Flat Press/Rotary Press issues, the Design Size Millimeter Gauge will quickly measure the size of the frame design of these stamps, while the Rotary/Flat Press Gauge is the quickest way to determine what press was used to print a stamp. The Schermack Private Perforation Gauge accurately reflects the vertical height of Schermack Type III perforations. The Large and Small Hole Perf 10 issues of the Liberty Series can easily be distinguished using this measuring device. A Standard Perf Gauge, which measures to the nearest tenth of a perf; a Cancellation
Diameter Gauge and an enlarged 240mm long Millimeter Scale are the final three devices on the gauge. The grill points in the Grill Pattern Gauge have been lightened, to allow users to better see through the gauge. This new gauge also features improved lamination that will keep the printed image from scratching off, and prevent shrinkage due to age and temperature. It is a revised edition and quantity dealer inquiries are welcome. Includes a protective slipcover shown and a colored "contrasting backround card" to aid in measurements. The back of the slip cover has a summary of the instructions and feature description shown below. You can also download a PDF instruction sheet here. The slipcover is made from glossy 90 lb. card stock. The multigauge itself is made of durable hydraulically laminated clear TVC ANSI-X35d spec temperature stable plastic and measures 10.4 x 3.9 inches and is 0.0095 inches (9mils) thick.
The tool you need to measure perforations in your stamps and much more.
You will find many stamps look identical, but its the perforation, image size, and/or girll mark size that identify exactly what stamp you have. The tools below are perfect for just that. Don't start grading or selling your collection without one.
Uni-Safe Perf Gauge
Scott Multi-Gauge
The Scott / Linns Multi-Gauge is a perforation gauge, cancellation gauge, zero-center ruler and millimeter ruler in one user-friendly instrument. It is also great for measuring multiples and stamps on cover! This gauge is a clear plastic film.
This Uni-Safe Perf Gauge is perfect
for measuring perforation, even on envelopes. Made of pressed alumimum.
Precision U.S. Specialty Multi-Gauge
 PDF instruction
The New and Improved U.S. Specialized Multi-Gauge is the essential tool for any collector interested in U.S. stamps from the Classics through the Liberty Issue of 1954. The gauge now contains 11 precision measuring devices beginning with a Specialty Perf Gauge based on the Kiusalas Specialist Gauge. For collectors of the Grilled Issues, there are two useful gauges: the Grill Pattern Gauge, used to determine the grill type of a stamp,
Showgard 2-in-one Perforation Gauge (#609)
Here is Showgard's 2-in-one Perforation gauge. One side features a perf gauge with ruler markings on sides. The back is a SHOWGARD MOUNT SIZING GUIDE.
Perforation Gauges
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