How to Clean an Antique Leather Scabbard 
The first thing to do is clean the leather with saddle soap. It should be applied using a shaving brush and wiped off with a clean, damp sponge. Then, you can apply leather dressing. This is a colourless product that restores life to the leather. It helps prevent fibre breakdown caused by dryness.
Pecard’s Antique Leather Dressing
There are a number of different techniques for cleaning an antique leather scabbard. The first is to apply an appropriate leather cleaner. This is best done using a soft cloth or applicator pad. Then, wipe off any excess fluid, and leave to dry. Be sure to stop if you notice any discoloration or cracking.
Secondly, you can clean the scabbard physically. You can scrape off the dirt with Q-tips or toothpicks, but be careful not to get the dirt onto the leather. Once the dirt has been removed, you can use a mixture of baking soda and vinegar to neutralize the corrosive elements.
Brasso
If you want to know how to clean an antique leather scabbard, you need to follow certain guidelines. The first step is to remove any signs of verdigris. You can use Q-tips or toothpicks to remove the stain. Avoid getting the product on the leather, as you don’t want to cause further abrasion. After this, apply a paste of baking soda and vinegar to neutralize the corrosion.
Once the cleaner has been applied, wipe off any excess liquid. If the antique leather scabbard is large, you can work on one side at a time. Always apply the cleaner with a soft cloth or applicator pad. Ensure that the leather is completely dry before applying any more.
Hot paraffin wax & Boot Polish
Before you can begin the process of cleaning an antique leather scabbard, you need to determine the condition of the leather. Many wax formulas migrate through the leather, so you need to reapply them frequently to maintain their concentration. Also, you need to check the box toes and heel counters, as these areas can become soft and prone to decay.
Make sure to thoroughly clean and dry the boots before applying wax. If the leather is heavily stained, you should scrub it with a brush to remove the dirt. If the leather is clean but has light deposits, you can simply wipe them off with a wet cloth moistened with a solvent. Be sure to use a quality product, such as Beeswax, as it has premium properties that make it a superior choice.
Humidification
The first thing to remember when cleaning an antique leather scabbard is that you should avoid over-moisturization. The leather will shrink if you moisten it too much. The relative humidity should be at 70 percent or less. It is also essential to avoid over-lubrication.
If your antique leather scabbard is in a dry climate, you should re-treat it more frequently than if it is in a humid environment. In this case, you can make use of a lighter application of the cleaning solution. However, you should avoid letting the leather dry out too quickly. If you do dry it out too much, it may even whiten. Although this is harmless, it will increase the chance of knocking off delicate parts.