I found them and purchased both from a gallery in London, William Weston.
1	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	2	nsubj	2:nsubj|5:nsubj	_
2	found	find	VERB	VBD	Mood=Ind|Number=Sing|Person=1|Tense=Past|VerbForm=Fin	0	root	0:root	_
3	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	2	obj	2:obj	_
4	and	and	CCONJ	CC	_	5	cc	5:cc	_
5	purchased	purchase	VERB	VBD	Mood=Ind|Number=Sing|Person=1|Tense=Past|VerbForm=Fin	2	conj	2:conj:and	_
6	both	both	DET	DT	_	5	obj	5:obj	_
7	from	from	ADP	IN	_	9	case	9:case	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	9:det	_
9	gallery	gallery	NOUN	NN	Number=Sing	5	obl	5:obl:from	_
10	in	in	ADP	IN	_	11	case	11:case	_
11	London	London	PROPN	NNP	Number=Sing	9	nmod	9:nmod:in	SpaceAfter=No
12	,	,	PUNCT	,	_	9	punct	9:punct	_
13	William	William	PROPN	NNP	Number=Sing	9	appos	9:appos	_
14	Weston	Weston	PROPN	NNP	Number=Sing	13	flat	13:flat	SpaceAfter=No
15	.	.	PUNCT	.	_	2	punct	2:punct	_
