One of the loveliest items in the PMHPS Collection is Cat No 581, a small metal matchbox promoting Swallow and Ariell Ltd. Swallow & Ariell Ltd promotional matchbox. PMHPS Collection (Cat No 581). It is only 6cm by 4.3cm with a full coloured paper insert fitted into the lid with a swallow swooping over the words With Compliments From Swallow &…