Cloth Seal, Lyon, One Part Silk Customs Seal, Lion & 3 fleur-de-lis, Image by StuE, Found by Nasher.
Found in North Hertfordshire / Cambridgeshire area, 15mm, 3.6g.
One side shows the French arms - a crowned shield with three fleur-de-lis in an inverted triangle. The shield is on a line and has 1665 along its right side. A square chain border is visible outside the date and bellow the line beneath the shield. The other side has a similar, square, beaded border containing a shield bearing three fleur-de-lis in a row above a lion passant - the arms of the City of Lyon.
See No.300 Fig.39, Geoff Egan , 'Lead cloth seals and related items in the B.M.' (B.M.occ.papers 93), "crown over shield with three fleur-de-lis, square chain border // shield with lion rampant [No.300 actually shows lion passant as this seal does but the standard arms of Lyon shows it rampant], a chief with three fleur-de-lis, Doann.. above, DELY... below, foliate border ... these customs seals (Douanne de Lyon) are attributed by Sabatier to the reigns of Louis XV and XVI (1715-89)."
If the number shown on this shield is, 1665, a date then it indicates that these seals were in use during the reign of Louis XIV.
More from Egan, "One-part custom seals for bales of exported silk. Legislation in 1540 (article XI) describes seals of this kind with the royal arms and those of the city as pieces a une cordette from the way they were secured with a white cord."
See DL32, p.34, Les Plombs de Scelle La Douanne de Lyon, Daniel Slowik, 2014, for another example of this type.