I tried to open in this  Squeak.image a previously saved drawing
(Connectors 1.9) from an other Squeak.image. Both images are Squeak 3.5
image.

1 December 2003 10:24:15 am

VM: Win32 - Squeak3.5 of '11 April 2003' [latest update: #5180]
Image: Squeak3.5 [latest update: #5180]

ShortPointArray(Object)>>doesNotUnderstand:
	Receiver: a ShortPointArray(0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0
0 at 0)
	Arguments and temporary variables: 
		aMessage: 	a Message with selector: #bytesPerElement and arguments:
#()
	Receiver's instance variables: 
a ShortPointArray(0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0)

RWBinaryOrTextStream(PositionableStream)>>nextWordsInto:
	Receiver: a RWBinaryOrTextStream
	Arguments and temporary variables: 
		aBitmap: 	a ShortPointArray(0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0 0 at 0
0 at 0 0 at 0)
		blt: 	nil
		pos: 	nil
		source: 	nil
	Receiver's instance variables: 
		collection: 	'''From Squeak3.5 of ''''11 April 2003'''' [latest
update: #5180] o...etc...
		position: 	8494
		readLimit: 	214125
		writeLimit: 	214125
		isBinary: 	true

ShortPointArray class(ArrayedCollection class)>>newFromStream:
	Receiver: ShortPointArray
	Arguments and temporary variables: 
		s: 	a RWBinaryOrTextStream
		len: 	12
	Receiver's instance variables: 
		superclass: 	ShortIntegerArray
		methodDict: 	a MethodDictionary(#at:->a CompiledMethod (414)
#at:put:->a Compile...etc...
		format: 	770
		instanceVariables: 	nil
		organization: 	('accessing' at: at:put: bounds defaultElement size)

		subclasses: 	nil
		name: 	#ShortPointArray
		classPool: 	nil
		sharedPools: 	nil
		environment: 	nil
		category: 	nil

SmartRefStream(DataStream)>>readWordLike
	Receiver: a SmartRefStream
	Arguments and temporary variables: 
		refPosn: 	8332
		aSymbol: 	#ShortPointArray
		newClass: 	ShortPointArray
		anObject: 	nil
	Receiver's instance variables: 
		byteStream: 	a RWBinaryOrTextStream
		topCall: 	#marked
		basePos: 	152
		references: 	an IdentityDictionary()
		objects: 	an IdentityDictionary(5->#('class structure' a
Dictionary(#AbstractFon...etc...
		currentReference: 	8332
		fwdRefEnds: 	an IdentityDictionary()
		blockers: 	an IdentityDictionary()
		skipping: 	an IdentitySet()
		insideASegment: 	false
		structures: 	a Dictionary(#AbstractFont->#(0) #ActorState->#(0
'owningPlayer' 'p...etc...
		steady: 	a Set(Color PasteUpMorph NCEllipseMorph
NCOffsetConstraintMorph Symbol ...etc...
		reshaped: 	nil
		renamed: 	a Dictionary(#FlasherMorph->#Flasher )
		renamedConv: 	a Dictionary()
		superclasses: 	a Dictionary(#AbstractFont->#Object
#ActorState->#Object #Alignme...etc...
		progressBar: 	nil
		objCount: 	nil
		classInstVars: 	nil


--- The full stack ---
ShortPointArray(Object)>>doesNotUnderstand:
RWBinaryOrTextStream(PositionableStream)>>nextWordsInto:
ShortPointArray class(ArrayedCollection class)>>newFromStream:
SmartRefStream(DataStream)>>readWordLike
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
SmartRefStream(DataStream)>>next
SmartRefStream(ReferenceStream)>>next
SmartRefStream>>next
SmartRefStream(DataStream)>>readArray
SmartRefStream(DataStream)>>next
SmartRefStream(ReferenceStream)>>next
SmartRefStream>>next
TTGlyph(Object)>>readDataFrom:size:
SmartRefStream>>readInstanceSize:clsname:refPosn:
SmartRefStream>>readShortInst
SmartRefStream(DataStream)>>next
SmartRefStream(ReferenceStream)>>next
SmartRefStream>>next
SmartRefStream(DataStream)>>readArray
SmartRefStream(DataStream)>>next
SmartRefStream(ReferenceStream)>>next
SmartRefStream>>next
TTFontDescription(Object)>>readDataFrom:size:
SmartRefStream>>readInstanceSize:clsname:refPosn:
SmartRefStream>>readShortInst
SmartRefStream(DataStream)>>next
SmartRefStream(ReferenceStream)>>next
SmartRefStream>>next
TTSampleStringMorph(Object)>>readDataFrom:size:
SmartRefStream>>readInstanceSize:clsname:refPosn:
SmartRefStream>>readShortInst
SmartRefStream(DataStream)>>next
SmartRefStream(ReferenceStream)>>next
SmartRefStream>>next
SmartRefStream(DataStream)>>readArray
SmartRefStream(DataStream)>>next
SmartRefStream(ReferenceStream)>>next
SmartRefStream>>next
OrderedCollection(Object)>>readDataFrom:size:
SmartRefStream>>readInstanceSize:clsname:refPosn:
SmartRefStream>>readShortInst
SmartRefStream(DataStream)>>next
SmartRefStream(ReferenceStream)>>next
SmartRefStream>>next
...etc...