This Panel uses other gauges coming from various freeware sources besides the FS default.
Following gauges are that I was able to positively identify the authors.

ASKANIA.remote_compass2.cdi , and
askania.remote_compass2.cs : comes from (c) 1998 Arne Bartels.

CPT.NAV.GPS.SWITCH : R.L. Clark 2000

italian_alt :(c)1997 Alex Bashkatov. of Flightsim Developers


prop2erkadf
prop2erkap
prop2erkcom1
prop2ERKdme
prop2erknav1
prop2erkxpnd : come from ERK Panels

RS14_ASI (original name PJD WW1 KPH ASI) :PJD Gauges

rs14_rpm and RS14_rpm1 (original name, Ford Trimotor Project)
:come from Realistic Panels ©1998 by Jorge Alsina.