Leblanc stencils of trumpets
	Model	Name	Bore	Bell	1st Slide	3rd Slide	Main Brace	Notes	Made By
	700	Special	.460"	Lightweight 1pc. Yellow brass		Throw Ring	None	Built as Holton T-303 also	Courtois
	707	Sonic	.453"	Lightweight 1pc. Yellow brass	Trigger	Throw Ring	Just behind OR on slide	Brace position moved at some point	Courtois
	707A	Al Hirt	.468"	1pc. Yellow brass		Throw Ring	Set back from slide	Hirt signature on bell, face on medalion	Courtois
	X707	Sonic	.468"	1pc. Yellow brass		Throw Ring	Behind slide	(same as Al Hirt ?)	Courtois
	708	Sonic	.460"	1pc. Yellow brass	Trigger	Throw Ring	Just behind OR on slide	Brace position moved at some point	Courtois
	727	Herriot	.468"	4.8", 1pc. Yellow brass, Angled up	Trigger	Throw Ring	Just behind slide	Bobby Heriot model, bell angle from bow	Courtois
	770	Gozzo	.460"	1pc. Yellow brass		Throw Ring	Just behind slide	One description says 3rd trigger, but no examples	Courtois
		Direct Air	.468"				On tuning slide	Tuning slide is behind 3rd slide; Courtois Grand Siècle	Courtois
		Symphonie	.453"?	1pc. Yellow brass with garland		Throw Ring	Just behind slide	"M" Bore (assume to be .453 like 707)	Courtois
		Symphonie II	.453"?	1pc. Yellow brass with garland	Trigger	Throw Ring	Set back from slide	"M" bore, balanced model, brace on angle	Courtois
		"Z"	.468"	4.8" 1pc. Yellow brass w/garland		Throw Ring	Just behind slide	looks like Symphonie	Courtois
		Medalion	.468"	1pc. Yellow brass with garland		Throw Ring	Just behind slide	looks like Symphonie	Courtois
	505	Dynamique	?	1pc. Yellow brass with garland		Throw Ring	Just behind slide	looks like symphony, but shorter t-slide sleeves	Courtois
	550	Dynamique	.460"?	1pc. Yellow brass with garland		Throw Ring	Just behind slide	"ML" bore, looks like Symphonie, shorter t-slide sleeves	Courtois
	T40	Noblet	.453"?	Yellow brass		Throw (below)	Just behind slide	"M" bore, simplified trim, lower tier model	Courtois
	T357	Sandoval	.463"	5", 1pc. Yellow brass	Throw Ring	Throw Ring	At crook - reversed const.	Arturo Sandoval model	?
	T705	HMG Spirit	?	Yellow brass		Throw Ring	Behind slide	(more recent) Looks like an off-shore made stencil type	?
	ST855	Regency	.462"	Yellow brass	Throw Ring	Throw Ring	Set back from slide	(more recent) Student/intermediate model	?
	Holton models with Courtois designed/built components
	Model	Name	Bore	Bell	1st Slide	3rd Slide	Main Brace	Notes	Years built
	508	Collegiate	.459"	Yellow brass, 2 pc		Throw Ring	None	French valves, caps, braces & lyre mount	1955-64
	608	SuperCollegiate	.459"	red brass & nickel, 2 pc		Throw Ring	None	French valves, caps, braces & lyre mount	1955-64
	45	Revelation	.459"	Yellow brass, 2 pc		Throw Ring	On tuning slide	French pistons only - otherwise American design	1958-64?
	48	Revelation	.459"	Yellow brass, 2 pc		Throw Ring	On tuning slide	French pistons only - otherwise American design	1958-64?
	T-602	Collegiate	.459"	Yellow brass, 2 pc		Throw Ring	On tuning slide	French valves, caps, braces & lyre mount	1965-<77
	T-500	Al Hirt Special	.459"	Yellow brass		Throw Ring	Just behind slide	French valves, caps, braces & lyre mount	1965-<77
	T-401	Galaxy	.459"	Cupro-nickel		Throw Ring	On tuning slide	French valves, caps & lyre mount	1968-?
	T-303	Continental	.460"	Yellow brass, 1 pc		Throw Ring	On tuning slide	"Continental Silver*One"	ca.1968
	T-303		.460"	Yellow brass, 1 pc		Throw Ring	None	Is a Leblanc 700 with Leblanc serial number	ca.68-70
	ST-550	MF Admiral	.459"	Yellow brass	Throw Ring	Throw Ring	Behind slide	French pistons only - otherwise American design	1970s
	ST-505	MF Banana	.459"	Yellow brass		Throw Ring	Behind slide	Angle bell, Leblanc Herriot	1970s
	ST-602		.459"	Yellow brass, 2 pc	Throw Ring	Throw Ring	On tuning slide	French valves, caps, braces & lyre mount	1970s
	Note: Leblanc bought Holton in 1964. French parts appear as early as 1955.
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