Argent, a pair of calipers azure, between its points a quatrefoil pierced gules, a bordure potenty azure. Renier van Noordpas (4/1997 East)
Argent, a pair of calipers inverted sable. Morgan ap Harry (5/1994 East)
Azure, in pale a drawing compass and a two-spouted oil lamp argent, enflamed Or. Arthur Lemner of Wesley (5/1986 West)
Barry wavy argent and azure, a pair of compasses Or supported by a lion rampant gules. Tōmas Teārlach Fraser (8/1991 Outl)
Gules, on a chevron per pale argent and sable between three pairs of compasses Or, three roses counterchanged. Angeline Cymraes (8/1992 Caid)
Per bend azure and argent, a pair of calipers and an harp counterchanged. Delftwood, Barony of (9/1993 East)
Per chevron sable and gules, two fleur-de-lys and a pair of compasses with a plummet dependant from its pivot, a bordure embattled Or. John Blacas (4/1992 Atla)
Per fess engrailed sable and barry engrailed argent and azure, an astrolabe argent and a pair of compasses inverted Or. Daoud al-Bodmani (2/1992 Atla)
Per pale Or and argent, a pair of calipers sable. Society for Creative Anachronism, Sciences, Minister (1/1973)
Per pale sable and argent, a pair of compasses and in base, between the points, a sun, all counterchanged. Zenobia Naphtali (1/1985 Caid)
Per pale vert and azure, a pair of calipers argent. Marinus, Barony of (9/1996 Atla)
Per pale vert and sable, an astrolabe between three pairs of drawing compasses argent. Tristan von Lausanne (2/1991 East)
Sable, a pair of calipers inverted argent. Morgan ap Harry (4/1989 East)
Sable, in pale a hammer fesswise, argent, hafted proper, and a divider argent, all between three bezants. Magnus Malleus (8/1988 Atla)