December Challenge - Something I Treasure

Day 3 of DDW/MollyMay's December daily challenge - Something I Treasure

Strictly speaking, not mine to treasure, but this is part of a large treasure trove, of "get out of jail free cards", part of a store, full of decommissioned equipment, which can be raided when manufacturers have impossibly long delivery schedules, customers have impossibly short delivery expectations, or the more common occurrence - both of those. These things have saved many a project from late delivery, which in turn saves a lot of stress, not to mention the egg on face.